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<th colspan="3" align="center">LPRng Reference Manual: 24
Sep 2004 (For LPRng-3.8.28)</th>
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<div class="CHAPTER">
<h1><a name="LPRNGCLIENTS"></a>Chapter 5. <b class=
"APPLICATION">LPRng</b> Clients - lpr, lprm, lpq, lpc,
lpstat</h1>
<div class="TOC">
<dl>
<dt><b>Table of Contents</b></dt>
<dt>5.1. <a href="lprngclients.htm#PRINTERINFO">Printer
and Server Information</a></dt>
<dt>5.2. <a href="x4127.htm">Command Line
-Pprinter@host</a></dt>
<dt>5.3. <a href="x4133.htm">Command Line
-Pprinter</a></dt>
<dt>5.4. <a href="x4139.htm">PRINTER, LPDEST, NPRINTER,
and NGPRINTER Environment Variables</a></dt>
<dt>5.5. <a href="x4155.htm">Wildcard Printcap
Entry</a></dt>
<dt>5.6. <a href="x4162.htm">First Printcap
Entry</a></dt>
<dt>5.7. <a href="defaultrmrp.htm">Default Printer and
Server Host</a></dt>
<dt>5.8. <a href="forcelocalhost.htm">Force Connection to
Localhost</a></dt>
<dt>5.9. <a href="allowusersetting.htm">User
Identification</a></dt>
</dl>
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<p>The <b class="APPLICATION">LPRng</b> software is a true
set of client/server applications. The <b class=
"APPLICATION">LPRng</b> clients, <b class=
"APPLICATION">lpr</b>, <b class="APPLICATION">lpq</b>, <b
class="APPLICATION">lprm</b>, and <b class=
"APPLICATION">lpc</b> connect to a <b class=
"APPLICATION">lpd</b> server using a TCP/IP connection. This
means that you must have TCP/IP networking enabled on your
workstation to use <b class="APPLICATION">LPRng</b>.</p>
<p>However, you do not need to have an external network
connection to the Internet. For most single system users, the
<b class="APPLICATION">lpd</b> server is running on the same
workstation as the client program, and the clients will
simply talk to the <var class="LITERAL">localhost</var>.</p>
<div class="SECT1">
<h1 class="SECT1"><a name="PRINTERINFO">5.1. Printer and
Server Information</a></h1>
<p>Options used:</p>
<ul>
<li>
<p><var class="ENVAR">PRINTER</var>, <var class=
"ENVAR">LPDEST</var>, <var class="ENVAR">NPRINTER</var>
<var class="ENVAR">NGPRINTER</var> <span class=
"emphasis"><i class="EMPHASIS">Environment
variables</i></span></p>
</li>
<li>
<p><var class="LITERAL">force_localhost</var> FLAG
<span class="emphasis"><i class="EMPHASIS">force
clients to send requests to localhost</i></span></p>
</li>
<li>
<p><var class="LITERAL">require_explicit_q</var> FLAG
<span class="emphasis"><i class="EMPHASIS">require
queue to be specified</i></span></p>
</li>
</ul>
<br>
<br>
<p>When an <b class="APPLICATION">LPRng</b> client such as
<b class="APPLICATION">lpr</b>, <b class=
"APPLICATION">lpq</b>, <b class="APPLICATION">lprm</b>, or
<b class="APPLICATION">lpc</b> needs to communicate with a
print server, the only information they normally need
is:</p>
<ol type="1">
<li>
<p>The remote printer (<var class="LITERAL">:rp</var>)
value to be used in requests to the <b class=
"APPLICATION">lpd</b> print server. This is sometimes
referred to as the <span class="emphasis"><i class=
"EMPHASIS">printer</i></span> or <span class=
"emphasis"><i class="EMPHASIS">print queue</i></span>
name.</p>
</li>
<li>
<p>The remote server (<var class="LITERAL">:rm</var>)
which is the The IP address or hostname of the <span
class="emphasis"><i class="EMPHASIS">print
server</i></span>.</p>
</li>
<li>
<p>The original queue name specified by the user which
may be used as part of the job information sent to the
print server.</p>
</li>
</ol>
<br>
<br>
<p><b class="APPLICATION">LPRng</b> has several ways to
specify the <span class="emphasis"><i class=
"EMPHASIS">printer queue</i></span> and <span class=
"emphasis"><i class="EMPHASIS">server</i></span>
information.</p>
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